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DataCentersExposed
Mapped (unverified)

Google Datacentre Waltham Cross

Hertfordshire, United Kingdom

Source: OpenStreetMap

Google Datacentre Waltham Cross is a mapped data center in Hertfordshire, United Kingdom, operated by Google LLC and ultimately owned by Alphabet Inc.. DataCentersExposed has documented a 1,298,524 sq ft footprint at this site. It runs on United Kingdom's grid, which was 36% fossil-fuelled at 217 gCO₂e/kWh in 2025 (Ember).

Reporting by · Updated Jun 14, 2026

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Real parent
Alphabet Inc.
Operator
Google LLC
Est. capacity
~250-525 MW
Footprint
1,298,524 sq ft
Grid carbon
217 gCO₂/kWh
Clean electricity
64%
Region
Hertfordshire
Attribution & capacity confidence:mediumprimary source
Status · click to filter

Most sites are mapped — located but awaiting a second source. How we verify

Dot size = disclosed capacity (MW). Smallest = undisclosed, not small.

Overview

source: link

Google Datacentre Waltham Cross is a Google data center in Hertfordshire, United Kingdom, operated by Google LLC and ultimately owned by Alphabet Inc. The site, currently mapped, covers a footprint of 1,298,524 square feet.

Operator chain

The grid behind this site

source: Ember · Eurostat
Grid carbon intensity
217 gCO₂/kWh
Clean electricity
64%
Fossil electricity
36%

National grid context, not this facility's own metering. Full country picture: United Kingdom data centers.

In the news

source: Google News (local + English)

Methodology & sources

Every row carries a confidence level (high / medium / low) and a source URL. Spot an error? Tell us.